Key-fastener



(No Model.)

- J. E. WHIDDEN.

KEY FASTENER.

ATENT OFFICE.

JOSEPH EDWARD VVHIDDEN, OF SOUTH ABINGTON, MASSACHUSETTS.

KEY-FASTENER.

SPECIFICATION forming part of Letters Patent No. 342,554 dated May 25, 1886.

Application filed April 7. 1696. Serial No. 108,141. (No model.)

To all whmn it may concern.-

Be it known that I, Josnrn EDWARD \VHlD-' DEN, a citizen of the United States, residing at South Abingtomin the county of Plymouth and State of Massachusetts, have invented a new and useful Key-Fastener, of which the following, in connection with the accompanying drawings, is a specification.

The object of my invention is to prevent a key from being turned in a lock from the opposite or outside of a door by means of nippers or'any other instrument.

Figure 1 represents my entire invention. Fig. 2 represents my invention when applied to a door and not in use. Fig. 3 represents my invention and in use fastening the key, the door being locked.

A detailed description is as follows: In Fig. 1 Ais a post, of convenient length and uniform size, attached to the plate B, and extending in a line at right angles to the surface of the latter. G is a bar of any length and size, with the thumb-screw D in one end entering in a lineal direction. A hole passes through the bar at said end at right angles to the line of the thumb-screw, of sufficient size to admit the post A. The bar 0 is further provided with a slot, E, which is widened at the center F. This may be made without widening at F and still be within my invention.

The bar 0 is intended to slide along the post A, and may be seen red at any point thereon by the thumb-screw D. The slot E is enlarged at the center F,in order to enable it in moving the bar 0 on the post A to pass along the entire lengtlrof the shaft of a key without interfering therewith.

It is applied and used in this way: The plate Bis screwed or otherwise fastened to a door, and at such distance from the keyhole that the center of the slot E shall fall directly over the center of the keyhole. The key K being in the lock in the position repre sented in Fig. 3, the barO is moved along the post Atill it occupies the position represented in Fig. 2. Tie door is locked and the key placed in the position represented in Fig. 3. The bar is then moved out along the post A till it occupies the position represented in Fig. 8, and secured by the thumb-screw.

The various parts of my invention may be made of malleable iron, brass, or any suitable metal or material.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

The combination, with the plate B, and the post A secured thereto, of the bar 0, having the slot E, the key adapted to engage the slot in the bar, and the thumb-screw D, adapted to secure said bar at any point on the post, substantially as and for the purposes set forth.

JOSEPH EDWVARD WVHIDDEN.

Witnesses:

H. F. WHIDDEN, R. E. WHIDDEN. 

